Fuel System - Unable to Reach Wide Open Throttle
Bulletin No: 01-001/02Last Issued: 02/05/2002
Subject:
UNABLE TO REACH WIDE OPEN THROTTLE - LACK OF POWER
APPLICABLE MODEL(S)/VINs
All 2001 B-Series.
DESCRIPTION
Some vehicles may exhibit an inability to reach Wide Open Throttle (WOT). This inability to reach WOT can cause a lack of power condition. This may be caused by a raised area of the Dash Panel Insulator, under the carpet below the accelerator pedal. This condition interferes the accelerator pedal's distance of travel.
Customers having this concern should have their vehicles repaired using the following procedure.
REPAIR PROCEDURE
1. Verify customer concern.
2. Monitor the throttle mode PID with KOEO (Key On Engine Off) while depressing the accelerator pedal:
- If excessive force on the accelerator pedal is needed to reach WOT, proceed to STEP 3.
- If excessive force on the accelerator pedal is not needed to reach WOT, perform normal diagnostics using the Workshop Manual for other causes of customer concern.
3. Peel back carpet to gain access to area below the accelerator pedal.
4. Make a U-shaped relief cut in the insulator (black plastic floor covering) below the accelerator pedal bracket, 140 mm wide and 100 mm long +/- 20 mm (5.5" wide by 4" long +/- 0.75").
NOTE:
^ Make sure to line up the center of the "U" cut with the accelerator pedal bracket. This will help to relieve any tautness in the insulator, so it will sit flush with the floor panel.
^ Do not cut the velcro patch as it is needed for adhesion of the carpet.
5. Reposition the carpet.
6. Verify repair by using WDS or NGS to verify that WOT mode can be reached without excessive force on the accelerator pedal.
WARRANTY INFORMATION
Note:
This information applies to verified customer complaints on vehicles covered under normal warranty. Refer to the SRT microfiche for warranty term information.
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